Examine source code of FbLive Video Fix

{
  "name": "FBLive Video Fix",
  "short_name": "FBLive Video Fix",
  "version": "2resigned1",
  "manifest_version": 2,
  "description": "This extension will make the Live videos easily controllable using default HTML5 Video Player Controls..",
  "icons": {
    "128": "images/icon-128.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "images/icon-128.png"
    },
    "default_title": ""
  },
  "background": {
    "scripts": [
      "scripts/jquery-3.2.1.min.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.facebook.com/*"
      ],
      "js": [
        "scripts/jquery-3.2.1.min.js",
        "scripts/contentscript.js"
      ],
      "css": [
        "styles/style.css"
      ],
      "run_at": "document_end",
      "all_frames": false
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{b609339c-22f6-4492-8e45-3b8b3e5b1f98}"
    }
  }
}